Adjustable strike



A ril 1 1924. 1,488,620

, J. H. SHAW ADJUSTABLE STRIKE 'Filedse t. 13, 1919 v 2 Sheets-Sheet 1 1 in W" HI I N In van for:

Patented Apr. 1, 1924.

UNITE!) S'IAI'EEZS iaaaaae ra'raur caries.

JOHN H. SHAVI, OF NEW HAVEN, CONNECTICUT, ASSIGNOR. T0 SAP/GENT 6c COMPANY, OF NEV] HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

ADJUSTABLE STRIKE.

Application filed September 13, 1919. Serial No. 323,457.

To all whom it may concern:

Be it known that I, JOHN H. SHAW, a citizen of the United States, residing in the city and county of New Haven, State of Connecticut, have invented certain new and useful Improvements in an Adjustable Strike, of which the following is a full, clear, and exact description.

This invention relates to improvements in strike plates for locks, and moreparticularly to the type of strike plate which in addition to receiving a protruding bolt, serves also to retain a dog controlling plunger in its retracted position.

The primary object of my invention is to provide the type of strike plate above indicated with means mounted thereupon, and adjustable towards and from the lock which engages thestrike plate, so that the dog controlling plunger carried by the lock will be properly operated by this adjustable means, even when the door has sprung or shrunk a considerable distance away from its strike plate.

Another object of my invention is to provide simple but satisfactory means for adjustably mounting a separate plate upon a strike plate, so that the former may be secured in different positions of adjustment upon the latter with the front face of the seiparate plate protruding from the strike ate.

P To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. 1 is a fragmentary front elevation of a pair of double doors having my invention applied thereto, the doors being shown sprung apart an abnormal amount.

Fig. 2 is an edge view of the left hand door shown in Fig. 1, having my improved strike plate applied thereto.

Fig. 3 is an edge view of the right hand door shown in Fig. 1 having a mortise lock mounted therein.

Fig. 4 is an enlarged sectional view taken on the line 4 4. of Fig. 1 looking in the direction of the arrows.

Fig. 5 is an enlarged sectional view taken on the line 5-5 of Fig. 1 looking in the direction of the arrows and showing the separate strike in a different position of adjustment from that shown in Figs. 1, 2 and 4E.

Fig. 6 is a fragmentary View of the inner face of the strike plate showing the adjustable strike applied thereto; and

Fig. 7 is a plan view of the adjustable strike removed from its strike plate.

In the drawings I have shown a mortise lock mounted in the edge of one door, and the improved strike plate with which this look cooperates mounted in the edgeof a second door, as shown more particularly in Fig. 1, but it will be apparent that my invention may equally as well be applied to strike plates mounted upon door jambs in the usual manner.

My invention, as above stated, is designed more particularly to be used in connection with mortise locks provided with what is known as a dog controlling plunger, which plunger is constructed to be retained in its retracted position by the strike plate, while the door is closed, to thereby permit mechanism within the mortise lock to move into position to dog the latch bolt in its pro tracted position. It some times happens that a door provided with this type of lock shrinks away from its strike plate to such an extent that the'dog controlling plunger will not be forced inwardly when the door is closed, a sufiicient distance to perform its intended functions. I have, therefore, provided an improved strike plate to overcome this defect, which I will now describe.

In the drawings I have used the numeral 10 to designate the right hand door shown in Figs. 1, 4 and 5, and the numeral 11 to designate the left. hand door shown in these figures. 'Within the edge of the door 10 is mounted a well-known type of mortise lock 12, the interior construction of which is partly shown in dotted lines in Fig. 1. This mortise lock 12 is preferably provided with any desired type of latch bolt 13, operated by a coiled spring let, and in order that this latch bolt may be dogged in its protracted position, the lock 12 is provided with any 'well-known type of dogging means, such as the pivoted lever 15, operated by a dog controlling plunger 16 in any preferred manner. In the embodiment illustrated, I have shown the pivoted lever 15 as provided with a projecting arm 17, which abuts against the ner face of the tail plate 18 formed upon the 16, which engages this separate plate.

inner end of the plunger stem 19, the arrangement being such that when the dog controlling plunger 16 is protracted by its spring 20, the dogging lever 15 will be swung to its inoperative position. The construction so far described is old and well known, and in itself forms no part of this invention. It is, therefore, believed that a more detailed description is unnecessary.

In the edge of the door 11 is mounted a strike plate 21 with which the lock 12 co operates. This strike plate is provided with a socket or opening 22 adapted to receive the protruding end of the latch bolt 13 in the usual manner, to thereby secure the lock 12 to its strike plate. In the embodiment illustrated the lock 12 is mounted upon one swinging door, while the strike plate 21 is mounted upon another swinging door, and since either of these doors may be moved to its closed position after the other door has been closed, it is necessary to bevel both edges of the strike plate 21, as indicated by the numerals 23 and 21, and since the dog controlling plunger 16 normally projects outwardly from its lock, the opposite faces of this plunger should be bevelled, as shown more particularly in Figs. 4: and 5. It will be apparent that if the strike plate embody ing my invention is to be applied to a door jamb instead of upon a second door, it will be unnecessary to bevel both edges of the strike plate, as herein shown.

In order to provide the strike plate 21 with means to properly operate the dog controlling plunger 16, even when the door has sprung away from its strike plate a con siderable extent, as indicated in Fig. 1, I provide the strike plate 2.1 with a separate plate 25 adjustably mounted upon the same and movable towards and from the plunger In the embodiment of my invention illustrated,

I have shown the separate plate 25 as piv-' otally mounted within .an opening formed in the strike plate 21. the strike plate being preferably provided with lugs 26 formed upon its inner face between which one end of the'separate plate 25 is mounted by means of the pivot pin 27. The outer face of the separate plate 25 is preferably provided with two flat faces at an angle to each other, as shown, one face 25 being arranged so that it will lie substantially flush with the outer face of the strike plate, as shown in Fig. 5, when the plate 25 is swung inwardly to the limit of the angle through which it may be adjusted. while if this plate 25 is swung outwardly to the limit of its adjustment, the second face of this plate 25" assumes the position shown in Fig. f in which the faces 25' and 25 form substantially corresponding angles with the front face of the strike plate 21. The means which I have provided for adjusting the swinging plate 25 conrate' plate in different sists of a screw 28 having its head mounted in the face of the strike plate 21, as shown more particularly in Fig. 2, the screw being held against longitudinal movement within its socket by any preferred means,

such as a pin 29 extending transversely through this screw, and positioned to engage the inner face of the lug 30 in which this screw rotates. The threaded portionof this screw operates in a block 31, which may be operatively connected to the plate 25 by a pin or the like 32.

From the mechanism just described, it will be seen that whenever a door carrying a mortise lock of the type herein indicated has sprung away from a strike plate pro vided with the invention herein disclosed, the separate plate, or adjustable strike 25, may be adjusted towards the dog controlling plunger 16 by means of the adjusting screw 28, until the plunger 16 will be operated by the plate 25 in the desired manner. The adjustment of this plate may be obtained by inserting a screw-driver or the like in the screw slot formed in the head of the screw 28 shown in Fig. 2 of the drawing.

It will be apparent that various means other than herein disclosed may be provided for adjustably mounting a separate plate corresponding to the plate 25 upon its strike plate for the purpose herein described without departing from the scope of my invention, as defined in the annexed claims.

What I claim is:

1. In combination with a lock provided with a latch bolt and a controlling plunger for the latch bolt. a strike plate for said latch bolt, a controller strike adjustably mounted upon said strike plate and positioned to be engagedby said plunger, and means for retaining said controller strike in different positions of adjustment.

2. In combination with a lock provided with a normally protruding member, a strike plate for said lock having a separate plate pivotally mounted thereupon, said separate plate having an outer face positioned to be operatively engaged by said member, and means for retaining said sepapositions of pivotal adjustment in the direction of said member.

3. In combination with a look, a strike plate for said lock, a separate plate adjust ably mounted upon said strike'plate and positioned to have its outer face operatively engaged by a portion of said lock, said separate plate being normally positioned within the outer surface of the strike but movable to a position to protrude beyond the outer face of said strike plate, and means for retaining said separate plate in its different positions of adjustment.

4. In combination with a look, a strike plate therefor, a separate plate swingingly mounted in the front face of said strike plate, said separate plate positioned to have its outer face operatively engaged by a portion of said lock, said separate plate being mounted t swing towards and from said lock about a vertical axis, and means for securing this plate in different positions of adjustment upon said strike plate.

5. A strike plate for a lock having an adjustable plate pivotally mounted within the face of said strike plate and movable about said pivot towards and from the lock with which said strike plate cooperates to place different portions thereof in position to cooperate with the lock.

6. A strike plate for a lock having a separate plate mounted thereupon, said separate plate normally lying within the face of said strike plate, and means for retaining said plate in different positions of adjustment in which it projects from said strike plate.

7. A strike plate for a lock having a separate plate swingingly mounted for pivotal adjustment thereupon about a vertical axis, and means for retaining said plate in different positions of adjustment upon said strike plate.

8. A strike plate for a lock having a bolt receiving opening formed therein in one portion thereof, a separate plate adjustably mounted upon said strike plate at another portion thereof, and .means for retaining said separate plate in different positions of adjustment upon said strike plate.

9. A strike plate for a lock havin a separate plate swingingly mounted wit in the face of said strike plate for movement in a horizontal plane, and means for swinging said separate plate to different positions of adjustment and for retaining the same in its adjusted position,

10. A strike plate for a lock havin a separate plate adjustably mounted wit in a face thereof, said separate plate having one end swingingly secured to said strike plate on a vertical axis, and means including 13. A strike plate, for a lock provided with a longitudinal movable bolt, having a separate plate adjustably mounted thereon said separate plate having one facet to cooperate with the bolt in the lock in the nor mal position of the plate and a second facet to cooperate with the bolt in an adjusted position of the plate.

14. A strike plate, for a lock, having a separate plate normally disposed within the surface of the strike plate, means for causing said separate plate to protrude from said strike plate.

15. In combination with a lock having a horizontally movable bolt, a strike to cooperate therewith, said strike being'swingingly adjustable about a vertical axis relatively to said bolt.

In witness whereof, I have hereunto set my hand on the 9th day of September, 1919.

JOHN H. SHAW. 

